METHOD OF MANUFACTURE OF THE TITANIUM SHEETS WITH THE IMPROVED DECORATIVE-PROTECTIVE PROPERTIES Russian patent published in 2007 - IPC C23F17/00 C23F1/38 C22F1/18 

FIELD: nonferrous metallurgy; other industries; methods of manufacture of the titanium sheets with the improved decorative-protective properties.

SUBSTANCE: the invention is pertaining to the method of treatment of the surfaces of the sheets made out titanium and its alloys, which may be used for improvement of their decorative-protective properties. The method includes the hot rolling, the cold rolling and the annealing of the sheets. At that after annealing the surface of the sheets is exposed to the acid etching in depth of not less than 0.04 mm, to the subsequent clarification in the nitric acid solution, after which exercise the final multirun cold rolling of the sheets in the polished rolls with the rolling speed of 0.65-0.75 m\s at total compression of 0.3-0.35 mm. The technical result of the invention is production on the surface of the sheets made out of titanium and its alloys of the homogeneous oxide film without pores, without spalls, without cracks, with the minimal roughness and the high reflective properties.

EFFECT: the invention ensures production on the surface of the sheets made out of titanium and its alloys of the homogeneous oxide film without pores, without spalls, without cracks, with the minimal roughness and the high reflective properties.

2 cl, 3 ex